Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
Central Nervous System |
Brain and Spinal Cord |
|
|
Peripheral Nervous System |
Autonomic Nervous System Somatic nervous system |
|
|
Sympathetic Response |
Eye - Dilate Lungs - Dilate Bronchioles Heart - increases heart rate Blood vessels - constrict blood vessels Gastrointestinal - relaxes smooth muscles of GI tract Bladder - relaxes bladder muscle Uterus - relaxes uterine muscle Salivary gland |
|
|
Parasympathetic response |
Eye - constricts pupils Lungs constricts Bronchioles and increases secretions Heart - decreases heart rate Blood vessels - Dilate blood vessels Gastrointestinal - increases peristalsis Bladder - constricts bladder Uterus - Salivary gland - increases salivation |
|
|
Parasympathetic nervous system |
The parasympathetic nervous system is called the cholinergic system because the neurotransmitter at the end of the neuron that innervates the muscle is acetycholine
The cholinergic receptors and organs cells are either nicotinic or muscarinic, meaning that they are stimulated by the adenoids nicotine and muscarine. Acetylcholine stimulates the receptor cells to produce a response but the enzyme acetylcholinesterase may inactivate acetylcholine before it reaches the receptor cell. Drugs that mimic the neurotransmitters norepinephrine and acetylcholine produce responses opposite to each other in the same organ. |
|
|
Sympathetic stimulants |
Sympathomimetics (adrenergics, adrenomimetics, adrenergic agonist) Action: Increase blood pressure Increase pulse rate Relaxed Bronchioles Dilate pupils of eyes Relaxed uterine muscles Increase blood sugar |
|
|
Sympathetic depressants |
Sympatholytics (adrenergic blockers, adrenolytics, or adrenergic antagonist) Action: Decrease pulse rate Decrease blood pressure Constrict Bronchioles |
|
|
Parasympathetic stimulants |
Direct-Acting Parasympathmimetics (cholinergics or cholinergic agonists) Actions: Decrease blood pressure Decrease pulse rate Constrict Bronchioles Constrict pupils of eyes Increase urinary contraction Increase peristalsis Indirect-acting Cholinesterase inhibitors (Anticholinesterase) Action: Increase muscle tone |
|
|
Parasympathetic depressants |
Parasympatholytics (anticholinergics, cholinergic antagonists, or antispasmodics) Action: Increase pulse rate Decrease mucus secretions Decrease GI motility Increase urinary retention Dilate pupils of eyes |
